Thanks for helping! I got a 1999 Mac Powerbook G3 with bronze keyboard (model number 5343). This machine supposedly stopped working (powering up) after a power surge during a lightning storm... Then this laptop was sitting powerless for about 2 years now. I got a powersupply for it now and charged the battery. Went to start the laptop up, i get startup chime, little green powerlight blinks, HD starts spinning and nothing. Screen black, nothing happens. Reseting the computer didn't help (tried pressing that little button in the back) also tried key combination, still nothing. Do you think i need a new PMU board or the battery? The previous owner told me he thought the logic board was "fried", but why then the chime sound comes on when i try powering it up?! Any help is very much appreciated. Thank you!!!